Home / 13,541.62-18,645.88-11,853.58

Finding the Fourth Proportional to 13,541.62, 18,645.88 and 11,853.58

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Solution

The fourth proportional to 13,541.62, 18,645.88 and 11,853.58 is: 16,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.62 : 18,645.88 = 11,853.58 : x
  2. Step 2: Convert to fraction form
    13,541.62/18,645.88 = 11,853.58/x
  3. Step 3: Cross multiply
    13,541.62x = 18,645.88 × 11,853.58
  4. Step 4: Simplify right side
    13,541.62x = 221,020,430.25
  5. Step 5: Solve for x
    x = 221,020,430.25/13,541.62
  6. Step 6: Final answer
    x = 16,321.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.